Im Kurs lernen wir viel voneinander.

In the course we learn a lot from each other.

Breakdown of Im Kurs lernen wir viel voneinander.

• wir: we
• viel: much
• im: in the; (masculine or neuter, dative)
• lernen: to learn

Questions & Answers about Im Kurs lernen wir viel voneinander.

Why does the sentence start with Im Kurs and not with Wir?

German has a verb-second rule: the conjugated verb must be in the second position in main clauses, but the first position can be almost anything (subject, time, place, etc.).

• Standard neutral order: Wir lernen im Kurs viel voneinander.
  (Subject first: wir)

• The original sentence: Im Kurs lernen wir viel voneinander.
  (Place adverbial first: im Kurs; verb still second: lernen)

Both are correct and mean the same in most contexts.
Starting with Im Kurs just slightly emphasizes the setting (“In the course, we learn a lot from each other”) instead of the subject (“We learn a lot in the course…”).

What exactly does Im Kurs mean, and why is it written as one word?

Im is a contraction of in dem:

• in = in
• dem = the (dative, masculine or neuter singular)
• Kurs = course (masculine noun)

So:

• in dem Kurs → im Kurs

Kurs is dative because the preposition in with a location (where?) usually takes the dative:

• Wo lernen wir viel voneinander? → Im Kurs. (Dative)

In everyday German, the contracted form im is almost always used instead of in dem here. In dem Kurs is grammatically correct but sounds more formal or emphasized.

Why is Kurs capitalized?